Home / 420,374.21-630,583.18-104,833.85

Finding the Fourth Proportional to 420,374.21, 630,583.18 and 104,833.85

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Solution

The fourth proportional to 420,374.21, 630,583.18 and 104,833.85 is: 157,256.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,374.21 : 630,583.18 = 104,833.85 : x
  2. Step 2: Convert to fraction form
    420,374.21/630,583.18 = 104,833.85/x
  3. Step 3: Cross multiply
    420,374.21x = 630,583.18 × 104,833.85
  4. Step 4: Simplify right side
    420,374.21x = 66,106,459,089.64
  5. Step 5: Solve for x
    x = 66,106,459,089.64/420,374.21
  6. Step 6: Final answer
    x = 157,256.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.